- Andrea USB sound card- Hi-fidelity external sound card with CD quality digital sample rates- Converts the built-in sound of the average desktop or laptop into a rich audio experience designed for PC users who insist on high quality/low noise audio- Small form factor, about the size of a thumb drive, is convenient for portability with audio peripherals- USB adapter enables the audio device driver platform which supports the Andrea PureAudio noise reduction technology and Andrea hardware peripherals. Can also be used to enhance ANY existing legacy headset, microphone or speakers- Includes Andrea's complete PureAudio Voice Solutions Software SuiteANDUSBSA